EMC

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Across
  1. 5. the table of the elements
  2. 8. a group of atoms
  3. 9. Smallest unit of measurement
  4. 11. also known as water.
Down
  1. 1. makes up everything
  2. 2. Chemically pure, cannot
  3. 3. Salt
  4. 4. salt water
  5. 6. carbon dioxide
  6. 7. negatively charged subatomic atom
  7. 10. not chemically pure